The U.S. International Trade Commission (USITC) has voted to institute an investigation of
certain silicon microphone packages and products containing same. The products at issue in this
investigation are small silicon microphone packages and certain electronic devices containing the
same, including earphones, ear buds, headsets, and headphones.

The investigation is based on a complaint filed by Knowles Electronics, LLC, of Itasca, IL, on
June 21, 2013. The complaint alleges violations of section 337 of the Tariff Act of 1930 in the
importation into the United States and sale of certain silicon microphone packages and products
containing same that infringe patents asserted by the complainant. The complainant requests that
the USITC issue a limited exclusion order and cease and desist orders.

The USITC has identified the following as respondents in this investigation:

By instituting this investigation (337-TA-888), the USITC has not yet made any decision on the
merits of the case. The USITC's Chief Administrative Law Judge will assign the case to one of
the USITC's five administrative law judges (ALJ), who will schedule and hold an evidentiary
hearing. The ALJ will make an initial determination as to whether there is a violation of section
337; that initial determination is subject to review by the Commission.

The USITC will make a final determination in the investigation at the earliest practicable time.
Within 45 days after institution of the investigation, the USITC will set a target date for
completing the investigation. USITC remedial orders in section 337 cases are effective when
issued and become final 60 days after issuance unless disapproved for policy reasons by the U.S.
Trade Representative within that 60-day period.